Rejuvenation Of Used Turbine Blades By Hot Isostatic Processing

LecturePg. 55-60.The creep properties of gas turbine blades will deteriorate with prolonged service exposure. This deterioration is primarily due to internal microstructural changes and the formation of creep voids or cavitation. Development work has shown that HIP processing is the best available treatment for recovery of properties in used blades. The results obtained on a complete engine set of lnconel X-750 blades indicate that HIP processing is capable of restoring new or near new creep resistance to used blades